System Reporter 2.8 | 3PAR System Reporter User’s Guide |
6.3.2 VV Cache Performance Reports
Table
Table
Metric | Description |
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|
Read Hits | Number of reads that hit in the cache. |
|
|
Read Misses | Number of reads that miss in the cache. |
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Read Total | Total number of reads. Not shown in charts. |
|
|
Write Hits | Number of writes for which the page is already in cache AND is |
| dirty (i.e., has previously written data that has not yet been flushed |
| to disk). |
|
|
Write Misses | Number of writes that miss in the cache. A write is considered a |
| miss if the page is not in the cache or if the page is not dirty in the |
| cache (see above). |
|
|
Write Total | Total number of writes. Not shown in charts. |
|
|
Read Hit% | Percentage of reads (out of total reads) that hit in the cache. |
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|
Write Hit% | Percentage of write (out of total writes) that hit in the cache. |
|
|
Total | Total number of accesses (reads + writes). Not shown in charts. |
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Performance Reports | 6.13 |